If I specify any single phy port by using UCX_NET_DEVICES for ucx_perftest to run between the two nodes, it works fine. But if not using UCX_NET_DEVICES, it simply crashs. Steps to Reproduce With UCX_NET_DEVICES to specify one device: [root@promote ucx-1.15.0]# UCX_NET_DEVICES=m...
UCX_NET_DEVICES=eth0 ucx_info -e -u t -P inter # # UCP endpoint # # peer: <no debug data> # lane[0]: 1:tcp/eth0.0 md[1] -> md[1]/tcp/sysdev[255] rma_bw#0 am am_bw#0 wireup # # tag_send: 0..<egr/short>..8185..<egr/zcopy>..20424..<rndv>..(inf) # tag...
/bin/bash# 假设我们有3个进程procs=3base_port=12345ip_address=("172.22.3.6""172.22.4.6""172.22.1.6""172.22.2.6")mlx=("mlx5_0:1""mlx5_1:1""mlx5_4:1""mlx5_5:1")fori in$(seq0$(($procs-1)));doport=$((base_port+i))mpirun --allow-run-as-root -np1-xUCX_NET_DEVICES...
uct_ib_md_ext_config_t ext;/**< External configuration */UCS_CONFIG_STRING_ARRAY_FIELD(spec)custom_devices;/**< Custom device specifications */ char*subnet_prefix;/**< Filter of subnet_prefix for IB ports */UCS_CONFIG_ARRAY_FIELD(ucs_config_bw_spec_t,device)pci_bw;/**< ...
(&num_devices) -> 获取所有网卡列表, 获取设备列表, 比如4个网口(网卡设备), 可通过 ibdev2netdev 查询rdma网口映射 ibv_fork_init -> 核心原理: 通过对所有已注册的MR所在内存页打MADV_DONTFORK标记,创建子进程后,MR所在内存页不会触发COW拷贝,避免了前面所说的COW带来网卡DMA内存地址不一致的问题, 但会...
(&num_devices)-> 获取所有网卡列表, 获取设备列表,比如4个网口(网卡设备), 可通过 ibdev2netdev 查询rdma网口映射 ibv_fork_init -> 核心原理: 通过对所有已注册的MR所在内存页打MADV_DONTFORK标记,创建子进程后,MR所在内存页不会触发COW拷贝,避免了前面所说的COW带来网卡DMA内存地址不一致的问题,但会引入...
export UCX_NET_DEVICES=enp3s0f0s0,enp3s0f1s0Or: env UCX_NET_DEVICES=enp3s0f0s0,enp3s0f1s0 <UCX-program>Using the command show_gids on the BlueField one can obtain the mlx device name and the port of an SF. Then that can be used to limit the UCX network interfaces and allow IB...
For example: dpu> env UCX_NET_DEVICES=enp3s0f0s0,enp3s0f1s0,mlx5_2:1,mlx5_3:1 NVIDIA DOCA UCX MLNX-15-060540 _v1.5.1 | 2 Chapter 3. Architecture The following image describes the software layers of UCX middleware. On the upper layer, various applications that...
cluster = LocalCUDACluster(protocol="ucx", enable_tcp_over_ucx=True, enable_nvlink=True, enable_infiniband=True, ucx_net_devices="mlx5_0:1") UCX with dask-cuda-worker CLI All the options described above are also available in thedask-cuda-workerCLI. To use UCX with that, you must firs...
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